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FILE NO. 053-200405A
(Canada Only)
TOSHIBA
SUPPLEMENT
SERVICE MANUAL
COLOR TELEVISION
20AF44
-SUMMARY-
This supplement serves as an update to the original 20AF44 Service Manual, file number 050-200405.
Please refer to this Supplement in conjunction with the original Service Manual when servicing this model.
DOCUMENT CREATED IN JAPAN, July, 2004
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TOSHIBA CORPORATION DIGITAL MEDIA NETWORK COMPANY
VISUAL MEDIA NETWORK DIV.
INTERNATIONAL CUSTOMER SERVICE & SUPPORT DEPT [11F-B]
TOSHIBA BLDG.
1-1, SHIBAURA 1-CHOME, MINATOKU, TOKYO 105-8001, JAPAN
FACSIMILE: (03)5444-9439 PONE: (03)3457-3536
SERVICE INSTRUCTION
Product: COLOR TELEVISION
FILE NO. 053-200405A
DATE:Aug.,2004
RANK:
A
Model: 20AF44 ( for CANADA only)
Symptom:
Corrective action:
Applicable units:
Delete the V-Chip function
Memory data change and parts exchange.
9405B4624 or younger.
TOSHIBA CORPORATION
KATSUMI TSUNODA
MANAGER
INTERNATIONAL CUSTOMER
SERVICE & SUPPORT DEPT
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IC199 memory data
WHEN REPLACING EEPROM (MEMORY) IC
Addreess From To
08 3D
3C
Delete the V-Chip function.
Cause
How to Change memory data
1.2.Enter DATA SET mode by setting VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
ADDRESS and DATA should appear as FIG 1.
ADDRESS DATA
INIT 00 50
CRT ON 0010
3.
ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN button on the remote, step through the
ADDRESS until required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
After the data input, set to the initializing of shipping.
9.
Turn POWER on.
10.
Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 1 second.
11.
After the finishing of the initializing of shipping, the unit will turn off automatically.
The unit will now have the correct DATA for the new MEMORY IC.
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ELECTRICAL REPLACEMENT PARTS LIST
MFR'S VERSION C MFR'S VERSION D
REF. NO. PART NO. DESCRIPTION TSB P/N PART NO. DESCRIPTION TSB P/N CAUSE
IC199 A3M701Z015 IC S-24C16AFJA-TB-01 AD301982 A3M7120015 IC S-24C16AFJA-TB-01 AE005390 Delete the V-Chip.
PCB010 A3M7110010
All parts are interchangeable between version.
MAIN PCB ASS'Y (VERSION C)
TMC559D
AE003171 A3M7120010
MAIN PCB ASS'Y (VERSION D)
TMC559D
AE005391
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TOSHIBA CORPORATION
1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN
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